001/**
002 *
003 * Copyright 2017 Paul Schaub
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.jingle.transports.jingle_s5b.provider;
018
019import static org.jivesoftware.smackx.bytestreams.socks5.packet.Bytestream.Mode.tcp;
020import static org.jivesoftware.smackx.bytestreams.socks5.packet.Bytestream.Mode.udp;
021import static org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate.ATTR_CID;
022import static org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate.ATTR_HOST;
023import static org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate.ATTR_JID;
024import static org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate.ATTR_PORT;
025import static org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate.ATTR_PRIORITY;
026import static org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate.ATTR_TYPE;
027import static org.xmlpull.v1.XmlPullParser.END_TAG;
028import static org.xmlpull.v1.XmlPullParser.START_TAG;
029
030import org.jivesoftware.smackx.jingle.element.JingleContentTransport;
031import org.jivesoftware.smackx.jingle.provider.JingleContentTransportProvider;
032import org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransport;
033import org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportCandidate;
034import org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportInfo;
035import org.jivesoftware.smackx.jingle.transports.jingle_s5b.elements.JingleS5BTransportInfo.JingleS5BCandidateTransportInfo;
036
037import org.xmlpull.v1.XmlPullParser;
038
039/**
040 * Provider for JingleSocks5BytestreamTransport elements.
041 */
042public class JingleS5BTransportProvider extends JingleContentTransportProvider<JingleS5BTransport> {
043
044    @Override
045    public JingleS5BTransport parse(XmlPullParser parser, int initialDepth) throws Exception {
046        JingleS5BTransport.Builder builder = JingleS5BTransport.getBuilder();
047
048        String streamId = parser.getAttributeValue(null, JingleS5BTransport.ATTR_SID);
049        builder.setStreamId(streamId);
050
051        String dstAddr = parser.getAttributeValue(null, JingleS5BTransport.ATTR_DSTADDR);
052        builder.setDestinationAddress(dstAddr);
053
054        String mode = parser.getAttributeValue(null, JingleS5BTransport.ATTR_MODE);
055        if (mode != null) {
056            builder.setMode(mode.equals(udp.toString()) ? udp : tcp);
057        }
058
059        JingleS5BTransportCandidate.Builder cb;
060        outerloop: while (true) {
061            int tag = parser.nextTag();
062            String name = parser.getName();
063            switch (tag) {
064                case START_TAG: {
065                    switch (name) {
066
067                        case JingleS5BTransportCandidate.ELEMENT:
068                            cb = JingleS5BTransportCandidate.getBuilder();
069                            cb.setCandidateId(parser.getAttributeValue(null, ATTR_CID));
070                            cb.setHost(parser.getAttributeValue(null, ATTR_HOST));
071                            cb.setJid(parser.getAttributeValue(null, ATTR_JID));
072                            cb.setPriority(Integer.parseInt(parser.getAttributeValue(null, ATTR_PRIORITY)));
073
074                            String portString = parser.getAttributeValue(null, ATTR_PORT);
075                            if (portString != null) {
076                                cb.setPort(Integer.parseInt(portString));
077                            }
078
079                            String typeString = parser.getAttributeValue(null, ATTR_TYPE);
080                            if (typeString != null) {
081                                cb.setType(JingleS5BTransportCandidate.Type.fromString(typeString));
082                            }
083                            builder.addTransportCandidate(cb.build());
084                            break;
085
086                        case JingleS5BTransportInfo.CandidateActivated.ELEMENT:
087                            builder.setTransportInfo(new JingleS5BTransportInfo.CandidateActivated(
088                                    parser.getAttributeValue(null,
089                                            JingleS5BCandidateTransportInfo.ATTR_CID)));
090                            break;
091
092                        case JingleS5BTransportInfo.CandidateUsed.ELEMENT:
093                            builder.setTransportInfo(new JingleS5BTransportInfo.CandidateUsed(
094                                    parser.getAttributeValue(null,
095                                            JingleS5BCandidateTransportInfo.ATTR_CID)));
096                            break;
097
098                        case JingleS5BTransportInfo.CandidateError.ELEMENT:
099                            builder.setTransportInfo(JingleS5BTransportInfo.CandidateError.INSTANCE);
100                            break;
101
102                        case JingleS5BTransportInfo.ProxyError.ELEMENT:
103                            builder.setTransportInfo(JingleS5BTransportInfo.ProxyError.INSTANCE);
104                            break;
105                    }
106                }
107                break;
108
109                case END_TAG: {
110                    switch (name) {
111                        case JingleContentTransport.ELEMENT:
112                            break outerloop;
113                    }
114                }
115            }
116        }
117        return builder.build();
118    }
119}